From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58925) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WNhQy-0008Fe-Kb for qemu-devel@nongnu.org; Wed, 12 Mar 2014 07:34:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WNhQs-00004u-Lg for qemu-devel@nongnu.org; Wed, 12 Mar 2014 07:34:52 -0400 Received: from mx1.redhat.com ([209.132.183.28]:2040) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WNhQs-0008WQ-DY for qemu-devel@nongnu.org; Wed, 12 Mar 2014 07:34:46 -0400 Date: Wed, 12 Mar 2014 13:34:44 +0200 From: "Michael S. Tsirkin" Message-ID: <20140312113444.GA6996@redhat.com> References: <1390921707-15109-1-git-send-email-kirill.shutemov@linux.intel.com> <878utx5tw1.fsf@linux.vnet.ibm.com> <87bnyp4e7k.fsf@linux.vnet.ibm.com> <20140202213202.GA2442@redhat.com> <871tzk4jzl.fsf@linux.vnet.ibm.com> <20140203110354.GA19825@redhat.com> <87vbwv2vii.fsf@linux.vnet.ibm.com> <20140205213111.GA8453@redhat.com> <20140207100252.1fccedc3@bahia.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140207100252.1fccedc3@bahia.local> Subject: Re: [Qemu-devel] 9pfs troubles (was Re: [PATCH 1/4] hw/9pfs: fix error handing in local_ioc_getversion()) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Greg Kurz Cc: "Aneesh Kumar K.V" , "Kirill A. Shutemov" , qemu-devel@nongnu.org On Fri, Feb 07, 2014 at 10:02:52AM +0100, Greg Kurz wrote: > On Wed, 5 Feb 2014 23:31:11 +0200 > "Michael S. Tsirkin" wrote: > > On Tue, Feb 04, 2014 at 12:51:25PM +0530, Aneesh Kumar K.V wrote: > > > "Michael S. Tsirkin" writes: > > > > > > > On Mon, Feb 03, 2014 at 03:05:10PM +0530, Aneesh Kumar K.V wrote: > > > >> "Michael S. Tsirkin" writes: > > > >> > > > >> > Haven't used 9pfs in a while. > > > >> > I thought these patches are a good time to play with it some more. > > > >> > I have encountered two issues. > > > >> > > > > >> > What I'm doing: > > > >> > host: qemu a75143eda2ddf581b51e96c000974bcdfe2cbd10. > > > >> > > > > >> > /scm/qemu/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -m 1g -cpu > > > >> > kvm64 -smp 2 f20-x64.qcow2 -netdev user,id=foo -redir > > > >> > tcp:8022::22 -device virtio-net,netdev=foo -serial stdio -fsdev > > > >> > local,security_model=none,id=fsdev0,path=/lib/modules/ -device > > > >> > virtio-9p-pci,id=fs0,fsdev=fsdev0,mount_tag=libmodulesshare -fsdev > > > >> > local,security_model=none,id=fsdev1,path=/boot -device > > > >> > virtio-9p-pci,id=fs1,fsdev=fsdev0,mount_tag=bootshare -no-reboot > > > >> > -snapshot > > > >> > > > > >> > guest: Fedora 20 > > > >> > > > > >> > added this in /etc/fstab: > > > >> > > > > >> > bootshare /share/boot 9p > > > >> > trans=virtio,version=9p2000.L 0 0 > > > >> > libmodulesshare /share/lib/modules 9p > > > >> > trans=virtio,version=9p2000.L 0 0 > > > >> > > > > >> > > > > >> > I have encountered two issues: > > > >> > > > > >> > 1. mount failure on boot > > > >> > If I try to mount on boot through fstab, I get: > > > >> > [ 2.270157] 9pnet: Could not find request transport: virtio > > > >> > [ 2.270158] 9pnet: Could not find request transport: virtio > > > >> > > > >> > > > >> Missing 9pnet_virtio.ko module ? > > > > > > > > Maybe it's loaded too late. But when I get to plymouth prompt > > > > it's loaded fine. > > > > Any idea about this one? Do you have guests with 9pfs > > and virtio as modules and 9pfs mounted from /etc/fstab? > > > > Hi Michael, > > I had the very same problem. You probably need to add 9pnet_virtio to the > initramfs. > > # mkinitrd -f --with=9pnet_virtio /boot/initramfs-$(uname -r).img $(uname -r) > # gzip -dc /boot/initramfs-$(uname -r).img | cpio -t | grep 9pnet > usr/lib/modules/3.11.7-200.fc19.ppc64p7/kernel/net/9p/9pnet_virtio.ko > usr/lib/modules/3.11.7-200.fc19.ppc64p7/kernel/net/9p/9pnet.ko > > Cheers. This seems to help but why is this necessary in the initrd? After all I am not trying to boot from 9pfs. > -- > Gregory Kurz kurzgreg@fr.ibm.com > gkurz@linux.vnet.ibm.com > Software Engineer @ IBM/Meiosys http://www.ibm.com > Tel +33 (0)562 165 496 > > "Anarchy is about taking complete responsibility for yourself." > Alan Moore.